/*
 * Copyright (c) 2017, 2025, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package at.ssw.visualizer.cfg.graph;

import at.ssw.visualizer.cfg.preferences.CfgPreferences;
import java.awt.AlphaComposite;
import java.awt.Composite;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import org.netbeans.api.visual.widget.Scene;
import org.netbeans.api.visual.widget.Widget;


public class SelectionWidget extends Widget {
    public SelectionWidget(Scene scene) {
        super(scene);
    }
    
    public static void renderSelectedRect(Graphics2D gr, Rectangle rect) {
        if (rect == null) {
            return;
        }
        gr.setColor(CfgPreferences.getInstance().getSelectionColorBackground());
        gr.fillRect(rect.x, rect.y, rect.width, rect.height);
        gr.setColor(CfgPreferences.getInstance().getSelectionColorForeground());
    }

    public void renderSelectionRectangle(Graphics2D gr, Rectangle selectionRectangle) {
        Composite composite = gr.getComposite();
        gr.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 0.5f));
       
        renderSelectedRect(gr, selectionRectangle);
        gr.setComposite(composite);
    }
    
    @Override
    public void paintWidget(){       
        this.renderSelectionRectangle(this.getGraphics(), this.getBounds());
    }

}
